The gap between the teeth is getting bigger and bigger may be caused by two neighboring teeth with cavities or periodontitis. 1. The gap between the teeth is getting bigger and bigger If two neighboring teeth have cavities at the same time, then the gap will be filled with food and there will be a gap between the teeth that is getting bigger and bigger. 2. The gap in the teeth is getting bigger and bigger may be caused by periodontitis, with the passage of time, it will stimulate the alveolar bone, resulting in the resorption of the alveolar bone, when the alveolar bone is resorbed, it will cause the teeth to loosen and shift, the original neat teeth will appear gap is getting bigger and bigger. The gap in the teeth is getting bigger and bigger patients, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease according to the doctor’s guidance for standardized treatment.